baber/WOPTO huggingface dataset:
Patent CA-2296940-C (CA)
Inventor: CROWLEY R HUGH
IPC: A01N43/50
Filed: 1991-11-27
Granted: 2001-02-06
Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
Patent CA-2298121-C (CA)
Title: Packing system for boreholes
Inventor: PARENT JOHN HOWARD
IPC: E21B33/12
Filed: 2000-02-04
Granted: 2006-01-10
Abstract: The packer includes the usual outer bladder, which is inflated against the sides of the borehole, to seal around a work-pipe. But the packer also includes an inner bladder. The packer is mechanically secured to the work-pipe by the grip of the inner bladder around the work-pipe. The inner bladder is sucked outwards by a vacuum pump, to enable the packer to be moved along the work-pipe. The same port through which vacuum was admitted to the inner bladder can then be used to admit pressurised fluid to the outer bladder.
Patent CA-2300173-C (CA)
Title: Procede de reduction de l'indice d'acidite total du petrole brut
Inventor: BLUM SAUL CHARLES
IPC: C10G29/06
Filed: 1998-08-28
Granted: 2005-06-14
Abstract: La présente invention concerne un procédé de réduction de la quantité d'acides carboxyliques dans les alimentations en pétrole consistant à (a) ajouter d'abord à cette alimentation un agent catalytique renfermant un composé d'un métal pouvant se dissoudre ou se disperser dans le pétrole, ce composé étant sélectionné dans le groupe constitué par les métaux des groupes VB, VIB, VIIB et VIII, et la quantité de métal dans l'alimentation précitée étant d'au moins 5 wppm; puis,(b) chauffer l'alimentation avec ledit agent catalytique dans un réacteur à une température d'environ 400 à environ 800  DEG F (environ 204,44 à environ 426,67 DEG C), sous une pression comprise entre environ la pression atmosphérique et environ 1000 psig (environ 6996,33 kPa) avec une quasi-absence d'hydrogène; et enfin, (c) balayer le réacteur contenant l'alimentation et l'agent catalytique avec un gaz inerte de façon à maintenir la pression partielle de l'eau de constitution et du dioxyde de carbone en dessous de 50 psia (environ 344,75 kPa)
Patent CA-2304966-C (CA)
Title: Bi-center bit adapted to drill casing shoe
Inventor: SILVA ROGERIO H
IPC: E21B10/43
Filed: 2000-04-10
Granted: 2005-04-05
Abstract: Although particular detailed embodiments of the apparatus and method have been described herein, it should be understood that the invention is not restricted to the details of the preferred embodiment. Many changes in design, composition, configuration and dimensions are possible without departing from the spirit and scope of the instant invention.
Patent CA-2306097-C (CA)
Inventor: ROULEAU YVES
IPC: H04B10/291
Filed: 2000-04-14
Granted: 2006-07-18
Abstract: A gain-locked dual stage or multi stage optical amplifier. The input signal is injected into an optical waveguide, such as an optical fiber, provided with at least a first and a second amplifying stage. Each amplifying stage is pumped by a corresponding pump source producing a pump signal having an initial pump power value. Means are provided to monitor the initial pump power of the first pump source, the initial pump power of the second pump source and the pump power of the portion of this signal unabsorbed by the first amplifying stage. The initial pump power of the first and second pump signals are controlled together, being set to a same controlled value which is calculated based on the pump power of the unabsorbed signal from the first amplifying stage.
Patent CA-2308550-C (CA)
Inventor: DESPRES REMI
IPC: G06F9/50
Filed: 1998-11-24
Granted: 2005-09-06
Abstract: The invention concerns a device comprising a memory (3) for storing several user share-parameters and several amounts capable of being increased. A decisional means (6) assigns a selected service slot of the resource to one user selected as having the least advanced amount It then causes the amount to increase according to a selected increment. Memory-linking means (5) define queues of users of the 'FIFO" type, such that at the head of the queue appears the user with the least advanced amount in said queue. The invention is characterised in that the memory (3) stores a limited number of increments. The memory-linking means (5) associates with each user one of said increment values, and assigns to each queue an increment value.
Patent CA-2309670-C (CA)
Title: Pressure-sensitive flame retardant adhesive
Inventor: YURCICK PETER A
IPC: C08F230/02
Filed: 1998-11-20
Granted: 2009-07-14
Abstract: A pressure-sensitive, flame-retardant adhesive is disclosed comprising a composition fabricated with the polymerization of acrylic esters, dibromostyrene, and vinyl phosphonic acid, with or without acrylic acid, mixed with dispersions of antimony trioxide. The adhesive composition preferably is an emulsion polymer fabricated with dibromostyrene, 2-ethylhexyl acrylate, n-butyl acrylate, and vinyl phospohonic acid, mixed with Sb2O3 in an approximate ratio of 100 parts polymer per about 8-12 parts Sb2O3. Preferred polymers are those containing at least about 11.6 % to 15.6 % bromine and from 0.25 %  to 2.5 % phosphorous. The adhesive is particularly advantageous in fabricating optical circuit devices.
Patent CA-2311352-C (CA)
Inventor: WILCOX DAVID MARK
IPC: H01J25/02
Filed: 1998-11-27
Granted: 2007-11-20
Abstract: An electron beam tube such as a klystron includes a penultimate resonant cavity (22) located before the output cavity (14). The penultimate resonant cavity (22) is arranged to be inductively coupled, bein g resonant at a frequency which is slightly greater than a harmonic frequency. This provides increased sharpening of bunches of electrons arrivi ng at the output cavity (14) giving increased efficiency at the output.
Patent CA-2313604-C (CA)
Inventor: BERNARDO RICHARD GREGORY
IPC: B60P7/02
Filed: 2000-07-07
Granted: 2007-02-20
Abstract: An improved slat hinge for a laminated retractable truck bed cover that permits greater relative movement between adjacent slats for slat rotation up to 45 degrees to significantly reduce roll diameter while preventing stretching or stress on a pliable surface material that forms the laminate on top of the slats. The hinge itself is formed by strategically designed leading and trailing edges of each slat which engage in an adjacent fashion to permit the desired movement while in the full open position eliminating the possibility of slat disengagement while reducing roll diameter in the stored position resulting in a smooth frictionless hinge rotation with a positive stop.
Patent CA-2318112-C (CA)
Title: Steel powder for the preparation of sintered products
Inventor: ERIKSSON OLA
IPC: B22F1/00
Filed: 1999-01-21
Granted: 2008-12-30
Abstract: The present invention concerns a method of preparing a sintered product having a tensile strength 750 MPa comprising the steps of compacting a water-atomised, annealed iron-based powder comprising, by weight %, Cr 2.5-3.5, Mo 0.3-0.7, Mn 0.09-0.3, O < 0.2, C <  0.01 the balance being iron and, an amount of not more than 1 %, inevitable impurities, at a pressure of at least 600 MPa and subjecting the compacted body to sintering at a temperature of at most 1220 °C.  The invention also concerns the annealed powder used in the method as well as the sintered products.
Patent CA-2322431-C (CA)
Inventor: GIROUX RICHARD LEE
IPC: E21B34/06
Filed: 1998-12-17
Granted: 2005-11-15
Abstract: A method for cementing casing into a wellbore, which method comprises the steps of: (a) providing float equipment into said casing at or adjacent the downstream extremity thereof; (b) inserting a bottom plug into said casing and pumping it down said casing with cement; and (c) inserting a top plug into said casing above said cement and pumping it down said casing, characterised by (d) providing a plug seat upstream of said float equipment, said bottom plug being shaped and configured so that it will pass said plug seat and land on said float equipment and said top plug being shaped and configured so that it will land on said plug seat.
Patent CA-2323055-C (CA)
Title: Buse melangeuse anti-retour a plusieurs elements
Inventor: BROWN DANIEL P
IPC: B29B7/74
Filed: 1999-02-24
Granted: 2009-09-08
Abstract: On décrit une buse mélangeuse anti-retour munie de deux pièces principales emboîtées, qui présente une extrémité avant (78) comportant une ouverture de distribution (74), une extrémité arrière (72) comportant au moins une paire d'orifices d'admission (62, 63) traversés chacun d'un passage central. La buse mélangeuse comprend au moins deux lamelles de soupape (92, 94) mues par leur propre résilience naturelle vers une position normalement fermée et couvrant l'ouverture des passages ménagées dans lesdits orifices d'admission (62, 63), et au moins un point de fixation (97) formé entre la surface interne de l'extrémité arrière (72) et lesdites lamelles de soupape (92, 94), ces dernières pouvant être déplacées de leur position normalement fermée par la force des éléments de mousse liquide arrivant.
Patent CA-2327854-C (CA)
Title: Plant growth regulator compositions
Inventor: DOTZER REINHARD
IPC: A01N59/14
Filed: 1999-03-30
Granted: 2008-05-13
Abstract: The invention provides novel mepiquat plant growth regulator compositions which have improved hygroscopicity and corrosion characteristics. The novel mepiquat plant growth regulator compositions of the invention can be readily prepared from technical mepiquat chlorid inter alia by electrochemical ion exchange processes or by quaternization of N-methylpiperidine with dimethylcarbonate as starting material.
Patent CA-2329715-C (CA)
Title: Containment system for containing blade burst
Inventor: MODAFFERI MARIO
IPC: F01D21/04
Filed: 1999-04-19
Granted: 2008-04-01
Abstract: The present invention is addressed to a multiple layer blade burst control system for use in turbine engines. The system utilizes a first inner containment ring (81) and a second outer containment ring (82) separated by a layer of thin ductile material (83). The inner containment ring (81) and outer containment ring (82) are each mounted to an engine housing by the use of a plurality of supporting legs (84, 85, 86). The first inner containment ring and the second outer containment ring each have complementary ribs (87) and grooves (88) on their respective inner and outer surfaces, so that when broken blades or blade fragments strike the inner surface of the inner containment ring (81), this ring (81) absorbs the transfer of energy and moves towards the second containment ring (82).  The movement of the inner containment ring also deforms the thin ductile material (83) which creates an additional energy transfer. The system may also be utilized without the thin ductile layer, and a set of intermeshing protrusions and recesses. The protrusions and recesses may be either complementary or non-complementary. The system has the advantage of being light and easy to manufacture.
Patent CA-2330692-C (CA)
Inventor: OGAWA MASANORI
IPC: C09J7/35
Filed: 2000-01-17
Granted: 2005-08-02
Abstract: A hot-melt adhesive particle dispersion in which the hot-melt adhesive particles are less apt to sediment; and products of even quality obtained with the dispersion. The dispersion is one obtained by dispersing particles of a hot-melt adhesive in water, and is characterized by containing a thickener of the alkali thickening type, desirably an acrylic copolymer emulsion of the alkali thickening type or a slightly crosslinked polyacrylic acid.
Patent CA-2339022-C (CA)
Inventor: HAWS CHRISTOPHER MARTIN
IPC: B65D83/14
Filed: 1999-08-13
Granted: 2006-05-02
Abstract: A safety razor has a handle formed by a refillable container (8). After filling with water a tablet (20) containing a carbon dioxide gas generating substance is added to the water and the gas pressure is used to deliver liquid from the container to the underside of the razor blade unit (1). The tablet also includes a substance which upon being mixed with water produces a fluid which may have desirable properties for application to the skin during shaving, such as lubrication, moisturising, applying a fragrance, chemical treatment of hairs, bacterial or medicinal treatment of the skin and/or blood coagulation. The container (8) can be equipped with a dispenser (30) operable to deliver tablets into the water filled container.
Patent CA-2341856-C (CA)
Title: Optically variable pigments providing a colour shift between two distinct colours, coating composition comprising the same, method for producing the same and substrate coated with the coating composition
Inventor: MULLER EDGAR
IPC: C09C/
Filed: 1999-07-30
Granted: 2008-07-29
Abstract: The invention relates to optically variable pigments (10) having a colour shift between two distinct colours of any of the known designs. The pigments having incorporated a totally reflecting layer made by physical vapour deposition from aluminium alloy (11). This pigment exhibits excellent chromaticity, corrosion resistance, particularly in any kind of coating composition or printing ink and especially when water is present.
Patent CA-2344149-C (CA)
Inventor: HALAAS ARNE
IPC: G06F15/80
Filed: 1999-10-08
Granted: 2003-08-26
Abstract: A digital processing device P, generally configured as a regular tree with n +1 levels S0, S1, S2...Sn and degree k, is provided in the form of a circuit Pn  on the level Sn and forms the root node of the tree, an underlying level Sn- q, q=1,2,...n-1, in the circuit P comprising generally kq circuits Pn-q provide d nested in the kq-1 circuits Pn-q+1 on the overlying level Sn-q+1, each circu it Pn-q+1 on this level comprising k circuits Pn-q. A for q=n defined zeroth level in the circuit Pn comprises from kn-1+1 to kn circuits P0 which form kernel processors in the processing device P and on the level S0 constitute the leaf nodes of the tree, the kernel processor P0 being provided nested in  a number from 1 to k in each of the circuits P1 on the level S1. Each of the circuits P1, P2, ...Pn, comprises a logic unit E which generally is connecte d with circuits P0, P1,...Pn-1 provided nested in the former circuits on the nearest underlying level and is additionally adapted to connect nodes on the  same or underlying levels in neighbour trees. Each of the circuits P0, P1,...Pn has additionally identical interfaces I, such that IP0=IP1=...IPn.< /SDOAB>
Patent CA-2345770-C (CA)
Inventor: WOODLEY PAUL STAIR
IPC: B04C3/06
Filed: 1999-09-30
Granted: 2008-08-12
Abstract: A method and apparatus for separating the components of a feed material prior to or simultaneously with at least partially vaporising one of the components is described. The apparatus comprises at least one inlet (8) for admitting the feed material (10) containing the two components to the apparatus (2) wherein a device for introducing a first movement to the feed material is located, such as, for example, an in-line swirl gen-erator (14), which imparts a swirling movement to the feed material to partially separate the components into two swirling flows. The partially separated material on emerging from the in-line swirl generator (14) is in an evaporation tube (20) in which the more volatile component is vaporised to further assist in separating the two components into a liquid component and a gaseous or vapour component. The liquid component and the vapour phase are discharged from the apparatus in two streams through the same outlet (36). Modifications of the method and apparatus include (i) having multiple evaporation tubes (20), each optionally provided with its own in-line swirl generator to facilitate better distribution and separation of the feed material, and (ii) having a reject nozzle (40) and reject conduit (42) located within the generator for allowing passage of vapour or gas through the in-line swirl generator (14) when there is an intermediate flow formed in the generator (14) and conveyed to the evaporation tube (20). The method and apparatus of this application are used as a pre-treatment in an overall separation plant.
Patent CA-2351461-C (CA)
Inventor: BELOTSERKOVSKY EDWARD
IPC: G01N21/55
Filed: 1999-11-18
Granted: 2011-10-18
Abstract: L'invention concerne un procédé consistant à utiliser la comparaison en proportions du rayonnement spéculaire et du rayonnement diffusé réfléchis sur un revêtement pour déterminer le point de gélification du revêtement et surveiller les caractéristiques de séchage du revêtement. Ce même système peut être appliqué pour surveiller le processus de séchage des revêtement en laboratoire afin de définir les caractéristiques du processus de séchage, d'améliorer la qualité du revêtement ou l'efficacité de la production. Un système mettant en oeuvre ce procédé comprend une source de rayonnement qui illumine le point du revêtement où la mesure est relevée, puis un premier et un second détecteurs de rayonnement détectent le rayonnement réfléchi par le revêtement à partir de la source de rayonnement. L'un de ces détecteurs de rayonnement est disposé de manière à capter le rayonnement spéculaire. Le second détecteur est disposé de manière à capter uniquement le rayonnement diffusé. Le rapport de ces deux valeurs donne une information relative au point de gélification et aux caractéristiques de séchage du revêtement.
Patent CA-2357385-C (CA)
Inventor: GAO XIAOLIANG
IPC: C08F4/659
Filed: 2001-09-17
Granted: 2010-06-15
Abstract: A phosphinimine catalyst for olefin polymerization is supported on a directly fluorided metal oxide with an aluminoxane. This catalyst is highly active for olefin polymerization in comparison to prior art catalysts which use non-fluorided metal oxide supports. The directly fluorided metal oxide may be conveniently prepared by contacting the precursor metal oxide with a simple alkali metal salt (such as NaF) in an aqueous slurry.
Patent CA-2358983-C (CA)
Inventor: GANNON WILLIAM J
IPC: B01J20/02
Filed: 1999-12-29
Granted: 2008-12-02
Abstract: A novel filtration media (40) employing polymeric absorbents comprising a material selected from the group consisting of styrene, pentadiene, cyclopentadiene, butylene, ethylene, isoprene, butadiene, propylene and mixtures thereof; and a filtration enabler intimately mixed with the polymeric absorbent.  Upon contact with a hydrocarbon containing liquid, the liquid partially dissolves the polymeric absorbent forming a partial filtration barrier prior to the filtration media substantially absorbing the hydrocarbons, and allowing hydrocarbon-free liquid to flow through the filtration media. The filtration media may be placed inside a portable container (20) for insertion into an existing drain.
Patent CA-2362363-C (CA)
Title: Substituted 4-amino-2-aryltetrahydroquinazolines, their preparation, their use and pharmaceutical compositions comprising them
Inventor: SCHONAFINGER KARL
IPC: A61P3/10
Filed: 2000-01-22
Granted: 2009-09-15
Abstract: The present invention relates to compounds of formula (I) which are valuable pharmaceutical active compounds for the therapy and prophylaxis of diseases, for example of cardiovascular disorders such as high blood pressure, angina pectoris, cardiac insufficiency, thromboses or atherosclerosis. The compounds of formula (I) have the ability to modulate t he endogenous production of cyclic guanosine monophosphate (cGMP) and are generally suitable for the therapy and prophylaxis of disease states which a re associated with a disturbed cGMP balance. The invention furthermore relates to processes for the preparation of compounds of formula (I), their use for the therapy and prophylaxis of the designated disease states and for the production of pharmaceuticals therefor, and pharmaceutical compositions which comprise a compound of formula (I).
Patent CA-2374143-C (CA)
Inventor: BOURSAT BENOIT
IPC: H01L23/373
Filed: 2002-03-04
Granted: 2012-09-11
Abstract: An electronic power circuit substrate including a wafer of electrically insulating material, wherein said wafer (1) presents a face (11) supporting one or more conductive tracks (4) directly connected to one or more electronic power components (3), said conductive tracks (4) being obtained by fine metallization of said face to a thickness that is less than 150 m.
Patent CA-2378106-C (CA)
Title: Bioavailable chelates of creatine and essential metals
Inventor: WHEELWRIGHT DAVID C
IPC: A61P3/02
Filed: 1999-11-22
Granted: 2010-07-20
Abstract: A chelate comprised of creatine bonded to an essential mineral selected from the group consisting of Mg, Ca, Cu, Zn, Fe, Cr, Co, Mo, Se and Mn to form a heterocyclic ring. Preferably, the metal is Mg, but Ca, Zn, Fe, Cr and Mn are also preferred. The creatine chelates of the present invention are capable of being absorbed in the stomach or intestines via active transport without substantial metabolism of the chelate. In other words, the creatine ligand is protected by the metal from undergoing cyclization in the acidic environment of the stomach and the metal is made more bioavailable due to the presence of the creatine ligand.
Patent CA-2379113-C (CA)
Inventor: LASCAUD STEPHANE
IPC: H02J7/02
Filed: 2000-06-21
Granted: 2011-01-11
Abstract: In a method of charging several electrochemical cells 5, 6, 7 connected in series, by a charger 1 which allows adjusting the voltage and the charging current, the voltage of each cell is detected permanently, and when a first cell reaches a predetermined threshold voltage, an increment of the charging current is applied to several cells 5, 6, 7 and simultaneously a shunt resistor of a current equivalent to the increment in the charging current of the several said cells 5, 6, 7 is connected in parallel to said first cell, and when each of the subsequent cells reaches the threshold voltage, a shunt resistor of a current equal to the increment in charging current of said several cells 5, 6, 7 is also connected in parallel to this cell. The invention is applicable to the use of accumulator systems for powering electric vehicles and thermal vehicles with self-contained electric mode.
Patent CA-2381848-C (CA)
Inventor: RING MICHAEL E
IPC: B60T17/22
Filed: 2002-04-15
Granted: 2005-07-26
Abstract: A mechanical sensor for a hand brake quick release mechanism having a housing, flexible clamp, and release shaft having a member with first and second elements. A housing member has open and closed ends. The open end is engageable with a housing outside wall at a point radially opposed to the flexible clamp. A first aperture formed through the closed end is in axial alignment with a second aperture through the housing wall and a third aperture through the flexible clamp. A first portion of the slidable member is disposed within the housing member. A second portion extends through the first aperture, and a portion of the first portion extends through the second and third apertures, engaging with the first element when the release shaft is rotated to achieve and maintain full brake release. A device is provided for urging the slidable member inwardly when the hand brake is applied.
Patent CA-2382521-C (CA)
Title: Oligonucleotide n3'.fwdarw.p5' thiophosphoramidates: their synthesis and use
Inventor: GRYAZNOV SERGEI
IPC: A61K31/7125
Filed: 2000-09-08
Granted: 2009-08-25
Abstract: Oligonucleotides with a novel sugar-phosphate backbone containing at least o ne internucleoside 3'-NHP(O)(S-)O-5' linkage, and methods of synthesizing and using the inventive oligonucleotide s are provided. The inventive thiophosphoramidate oligonucleotides were found to retain the high RNA binding affinity of the parent oligonucleotide N3'.fwdarw.P5' phosphoramidates and to exhibit a much higher acid stability.